Remove unused variables

src/app/qgsmapstylingwidget.h

@@ -59,11 +59,6 @@ class APP_EXPORT QgsMapStylingWidget : public QWidget, private Ui::QgsMapStyling
     void pushUndoItem( const QString& name );
     int mNotSupportedPage;
     int mLayerPage;
-    int mVectorStyleTabIndex;
-    int mVectorLabelTabIndex;
-    int mRasterStyleTabIndex;
-    int mRasterTransTabIndex;
-    int mRasterHistogramTabIndex;
     QTimer* mAutoApplyTimer;
     QDomNode mLastStyleXml;
     QgsMapCanvas* mMapCanvas;

src/app/qgsstatusbarscalewidget.h

@@ -77,8 +77,6 @@ class APP_EXPORT QgsStatusBarScaleWidget : public QWidget
     QLabel* mLabel;
     //! Widget that will live on the statusbar to display scale value
     QgsScaleComboBox* mScale;
-    //! The validator for the mScaleEdit
-    QValidator* mScaleEditValidator;
 };
 
 #endif // QGSSTATUSBARSCALEWIDGET_H